Abstract: An apparatus for converting wave energy into electrical energy includes a wave power generation unit including a frame and float guides. A wave power generation float is joined to the float guides for vertical motion in response to the wave energy. The wave power generation float includes at least one wave power conversion module. The wave power conversion module includes a module case and an air sealing tube formed in the module case for generally preventing fluids from entering the module case. A power transmission cable transmits electrical energy where one end of the power transmission cable passes through the air sealing tube and is joined to the frame. A cable reel winds and unwinds the power transmission cable. A power transmission drive translates a bidirectional rotation of an input shaft into a unidirectional rotation. A generator generates electrical energy in response to the unidirectional rotation.

Abstract: A method for operating a wind turbine. The method includes providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point. At least two operational parameters are obtained from one or more sensors. An adjusted rotational speed set point greater than the initial rotational speed set point is determined in response to the operational parameter. The control system is configured with the adjusted rotational speed set point. A wind turbine and wind turbine plant are also disclosed.

Abstract: A method for determining a rotor position of an electrical generator in a wind turbine is described comprising determining a voltage of the electrical generator, determining a rotor position angle estimate based on the voltage of the electrical generator, determining a subsequent rotor position angle estimate through a feedback loop, based on a combination of the voltage of the electrical generator and the rotor position angle estimate. Further, a method to real time track encoder health is described comprising determining the phase angle of a reference voltage, determining the angle difference between the rotor position and the reference voltage, and determining the differentiation of the angle difference.

Abstract: A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime mover, the generator system provides relatively constant frequency AC power by independently controlling the main rotor flux rotational speed. The generator system includes an exciter stator that induces current in the exciter rotor windings at a desired frequency and phasing. The exciter rotor windings are electrically connected to the main rotor windings to provide two-phase excitation current to the main rotor windings. Excitation is supplied to the exciter stator from an exciter controller, which controls the frequency and phasing of the exciter excitation, based on the rotational speed of the generator, to maintain a constant output frequency.

Abstract: A vehicle includes a mobile electric power generation system including a mobile power source such as a generator. An external power interface is included to connect to an external electrical power source. An AC electric power distribution bus is included to power electric loads of the vehicle and a power switch device is provided to selectively provide AC electric power on the power distribution bus from one of the respective power sources with a default to select one of the sources whenever it is present.

Abstract: A combined water tank and generator is provided. By capturing rainwater into a container at a higher point, using the weight of the container to drive an electrical generator, and releasing the stored water once it has reached the ground, a system is provided that provides electricity and provides a source of water for later use.

Abstract: A DC generation and storage device including a power generation section with multiple layers of an electret film. A rectifier is connected to the electret film, which in turn will be connected to a DC to DC converter. A power storage device (e.g., a battery or capacitor) will be connected to the converter.

Abstract: An electric generator with a rotating diode fault detection device built in that operates by comparing a voltage buildup across the exciter DC supply with a preset threshold value and determining if a fault condition is present based on the comparison.

Abstract: An engine generator set comprises an internal combustion engine having an output shaft that is coupled to an electrical generator for producing an AC electrical power output. The engine is operable to rotate the shaft at a first rotational speed so that the generator is driven to produce electrical power at a first frequency and a second rotational speed at which the generator is driven to produce electrical power at a second frequency. An exhaust gas turbocharger is operatively connected to the engine and has a compressor with a housing that defines a gas inlet. At least two guide, vane assemblies that are releasably and interchangeably connectable to the inlet to match the compressor performance with the first or second engine speed. The guide vanes of the first guide vane assembly extend in a downstream direction towards the impeller wheel at an angle relative to the inlet that is different to the corresponding angle of the guide vanes second guide vane assembly.

Abstract: This invention involves a method of creating a hydroelectric turbine system that is capable of producing electricity while sustaining a majority of the fluid flow or hydraulic pressure within the pipe line or pipe network driving the system. The system's objective is to shave as little pressure as possible from an enclosed pipe system that requires pressure to operate and function properly. More particularly, this invention relates to a hydroelectric turbine generator system wherein the system is specially designed and configured with an unique impeller and fluted turbine housing that enable a generator device to produce a particular amount of electric current and voltage, while yet minimizing flow restriction and pressure loss to the fluid pressure driving the system.

Abstract: The Wind Powered Generator System is a combination of many common automotive parts. Automotive wind power is a new area and incorporates a roof carrier system that have generators mounted on the crossbar or the roof system. The air velocity or wind turns the fan blade when either vehicle is in motion or not, producing an electrical current.

Abstract: A wind turbine generator includes: a nacelle provided with a plurality of modules; a controller provided in a first module out of the plurality of modules; a first device provided in a second module out of the plurality of modules. The controller and the first device are connected with a device-side connection mechanism and a controller-side connection mechanism to allow electrical communications between the controller and the first device. The device-side connection mechanism includes: a first connection element; and a first multicore cable including a plurality of signal lines with one end connected to the controller and the other end connected to the first connection element. The device-side connection mechanism provides an electrical connection between the first connection element and the first device.

Abstract: A wind power installation is provided having a pylon, a pod mounted rotatably on the pylon, a generator arranged within the pod and having a rotor and a stator, and at least one fan in the region of the pod. In order to reduce the entry of moisture, sand and other foreign substances into the pod and also to reduce the fan noise which reaches the exterior, the fan may suck in outside air through a downwardly open first air gap, in particular between the pylon and the pod. The fan may be adapted to blow air out of a rear part of the pod, through an air gap between the stator and the rotor and into a front part of the pod. A seal structure may be positioned in the pod in such a way that an air flow that bypasses the air gap between the stator and the rotor is substantially prevented.

Abstract: An apparatus comprising a mechanical-to-electrical energy converting device having a plurality of electrodes and a fluidic body which comprises spatially separated conductive and dielectric liquid regions. Said fluidic body is configured to reversibly move as a whole with respect to said plurality of electrodes under the influence of a mechanical force. Each cycle of said reversible motion of said fluidic body causes multiple alternations of the amount of electrical charge accumulated by the electrodes, whereby generating electrical current flow between said electrodes.

Abstract: In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system configurable in a starting mode for cranking the diesel fueled power unit, the electrical power system having a synchronous machine coupled to the diesel-fueled power generation unit, the synchronous machine having a field winding connected in a parallel relationship with a current conditioner, a method for reconfiguring a baseline circuit topology of the electrical power system for controlling a voltage being developed across the field winding including uncoupling the field winding from the parallel relationship with the current conditioner, and coupling the field winding in a series relationship with the current conditioner.

Abstract: There is disclosed a hydro-electric generating device comprising a solid plate fixedly supporting two bearings, which bearings rotatably support a shaft, the plate has a cutout fillable with water subjected to wave motions; a turbine fixed on the shaft. The turbine has a plurality of blades disposed in the cutout. The device further comprises a transmission, kinematically connected to the shaft, an electrical generator mounted on the plate and driven by the transmission, and a forklift furnished with wheels. The plate is secured on the forklift, and the forklift provides for a three-dimension adjustment that constitutes relocation of the generating device along the coastal line, displacement of the generating device from and to the current waterline, and vertical displacement of the plate and turbine of the generating device depending upon the current wave height. The device can be supplemented by a mat placeable on the coastal surface.

Abstract: The engine equipped with a generator is provided. The stator fixed to the crankcase includes a plurality of iron cores arranged in the circumferential direction about the crankshaft, and coils that are wrapped around the plurality of iron cores. The rotor includes a flywheel that is fastened to the crankshaft by a fixing mechanism, and a plurality of permanent magnets fixed to the flywheel. The fixing mechanism mounts the flywheel on the crankshaft in a position in which the center of one permanent magnet among the plurality of permanent magnets coincides with the center point between two mutually adjacent iron cores among the plurality of iron cores when the piston is at the top-dead-center or the bottom-dead-center.

Abstract: Methods for increasing a total reactive power capability of a cluster of wind turbines operationally connected to a grid and systems for carrying out the methods. The method includes generating a voltage value representative of a grid voltage level, determining a total required reactive power value based on the voltage value, and activating at least one wind turbine in said cluster to increase the total reactive power capability from a present value to the required total reactive power value by a predetermined amount.

Abstract: An ambient energy harvesting system, and method of use thereof, includes a magnetic flux-generating assembly (28), a coil (30) positioned adjacent to the magnetic flux-generating assembly (28), and a cantilevered arm (24). Vibration of the cantilevered arm (24) enables relative movement between the magnetic flux-generating assembly (28) and the coil (30) to generate an electric current in the coil (30). An effective flexible length (L) of the cantilevered arm (24) is selected such that applied kinetic energy causes the cantilevered arm (24) to vibrate at approximately its resonant frequency.

Abstract: An wave turbine composed of a omnidirectional turbine (or Double Wind Turbine) that is used with two tanks and a connecting tube between the two tanks. This omnidirectional turbine is placed in the middle of the connecting tube in a vertical axis position. The two tanks are placed a half wave length apart from the center to the center of each tank. Since the two tanks are a half water wave apart, than as water level of one of the tank rises the other water level on the other tank will go to lower and vise versa. This action will cause a back and forward motion of compressed air through the connecting tube. This compressed air will go through the omnidirectional turbine and cause a unidirectional rotation of the omnidirectional turbine. A axle connected to the omnidirectional turbine will transfer the energy to a generator to produce power output.